Is it false that navigation lights are mandated for all vessels during nighttime operations?

The assertion that navigation lights are mandated for all vessels during nighttime operations is indeed true. According to the International Regulations for Preventing Collisions at Sea (COLREGs), all vessels are required to display navigation lights when operating after sunset and before sunrise, as well as during periods of restricted visibility. This requirement is crucial for ensuring vessels are visible to one another, which helps in the prevention of collisions at sea.

The use of navigation lights aids in identifying the type and direction of other vessels, allowing mariners to take necessary precautions to maintain safe distances. There are specific lighting configurations that vary based on the type of vessel (such as power-driven, sailing, or fishing vessels), but the overarching rule applies to all vessels. Therefore, the statement in question is true because the law mandates navigation lights for the safety of all vessels at night.